Fossilised stem of a giant horsetail (Calamites ramosa) plant. This specimen is from Westphalian Coal Measures and dates to about 300 million years ago. It was found in an open cast coal mine near Merthyr Tydfil, Wales, UK. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Stammers, Sinclair |
Bildgröße: | 4928 px × 3264 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |